Submerged force-pump



(No Model.)

L. A. KELLY.

SUBMERGED FORGE PUMP.

No. 350,002. Patented Sept. 28, 1886.

WITNESSES JC ISTfVEGNgOR:

ATTORNEYS.

LAWRENCE AARON KELLY, OF EAST OAKLAND, CALIFORNIA.

SUBMERGED FORCE-PUMP.

SPECIFICATION forming part of Letters Patent No. 350,002, dated September 28, 1886.

Application filed April 9, 1886. Serial No. 198,360. (No model.)

To all whom it may concern.-

Be it known that I, LAWRENCE AARON KELLY, of East Oakland, in the county of Alameda and State of California, have invented a new and useful Improvement in Submerged Force-Pumps, of which the following is aspecification.

My invention is an improvement in the class of force-pumps which are adapted to be submerged and provided with hollow piston-rods.

The true value of a pump must be estimated chiefly by its simplicity of construction, its durability, ease of operation, and the quantity of water it will raise in a given time.

My invention is an iron pump designed to possess these qualities, and thereby meet es sential requirements.

The construction and combination of parts are as hereinafter described and claimed.

In accompanying drawing my improved pump is shown mainly in sectional elevation.

The cylinders A A are made separate and placed vertically side by side. The caps B B are, however, made double for the purposes of greater strength, lightness, and economy in manufacture. They are provided with exterior perforated lugs, c, for attachment of the lengthwise screw-bolts O, that secure the cylinders and caps firmly together, as shown,a11d with internal shoulders, b, on which rest the perforated diaphragms 0. The latter are held fixed in position by the cylinders A, whose ends abut on them. The caps B B are conical in form and provided with openings to ad mit water freely. The lower caps have points 6, that enter the earth, and have a horizontal plate cast in one piece with them, to serve by resting on the earth as a further means of support ior the pump. The upper caps B B have suitable openings provided with brass bushings for the pistons D. A brace or post, E, is attached to the under side of the platform and to the upper double cap B. This post coacts with the points 6 and connectingplate in holding the pump rigidly in position. Both upper and lower caps B have a fixed foraminous diaphragm, f, cast in one piece with the body of the same. Between the two parallel diaphragms c f are placed valves 9, which are iron disks having an enlarged opening around the piston-rods. These valves rise and fall as the pistons work up and down, and thus alternately open and close the openings in said diaphragms. The pistons D are box-like or hollow and perforated at top and bottom. A perforated disk-valve, h, is placed in each piston, and serves to alternately open and close the upper and lower openings in the same. The piston-rods F F are hollow and curved at their upper ends to adapt them to deliver water into a U shaped receptacle having a discharge-spout at its lower end. The upper ends of said rods are also pivotally connected with a centrally-pivoted oscillating hand-lever, G, as shown.

The operation of the pump will be apparent Without lengthy description by observing the arrows in the drawing; When the lever G is oscillated, one piston descends and the other rises. The valve h of the ascending piston closes the openings in the lower side of the latter, and hence a vacuum is created below such piston, I which causes water to enter through the lower cap, raise the valve g, and flow past it into the cylinder. When a piston descends, its valve it rises and closes the openings in its upper side, while the valve 9 closes the openings in the lower diaphragm, 0, so that the water previously inducted into the cylinder is forced up through the hollow pistonrod F and discharged into receptacle. WVhen the pump is not operating, the water in the hollow rods F flows back, so that whenever water is raised it is fresh from its source. It is also obvious there is no liability of freezing.

The valves and all other working parts of the pump are constructed of iron or brass, which makes it durable, cheap, and strong.

In some cases I propose to make the caps B single, to adapt them for single acting pumps.

I do not claim a metal pump, nor one having a perforated cap or point extending downward therefrom.

What I claim is In a submerged pump, the combination, with the cylinder A and an independent perforated diaphragm, c, of the cap B, having an internal shoulder, b, and a perforateddiaphragm, all arranged as shown and described, whereby the said diaphragm c is confined between the cap and cylinder and a chamber provided for the disk-valve, as shown and described.

LAWRENCE AARON KELLY.

Witnesses:

ROBERT A. JACKSON, WILL H. BURRALL. 

